Which Specimen Type for scans of blood film?

[John Stevenson-Hoare]

Am I correct in assuming that the VL Whole Slide Microscopy IOD would
be used when digitising a blood film (peripheral blood smear) from a
glass microscope slide?

If so, for the Specimen module, which Specimen Type is most
appropriate? The documentation states to use Baseline CID 8103 for the
Code Sequence Macro item of the Specimen Type Code Sequence. Looking
at this Context ID, the closest I could suggest would be the Code
Value G-80A6 (Body fluid sample), or possibly G-80A5 (Body substance
sample). Do these terms have specific meanings, or could I use one or
either to refer to a blood smear?

Thanks.

[John Stevenson-Hoare]

[David Clunie]

On 1/4/12 9:24 AM, John Stevenson-Hoare wrote in news:comp.protocols.dicom:

Hi John

This is probably a question better asked of the WG 26 guys directly, but
here is my guess ...

If you look in SNOMED for various specimen types involving blood, there
are a bunch that might be suitable, considering that you need to consider
the specimen separate from how the slide is prepared.

I would guess that:

G-810C Blood film sample (specimen)

looks promising.

but here is a whole list:

G-8190 Acellular blood (serum or plasma) specimen (specimen)
G-8012 Arterial blood specimen (specimen)
G-8030 Blood bag specimen (specimen)
G-8032 Blood bag specimen, from blood product (specimen)
G-8031 Blood bag specimen, from patient (specimen)
G-81BB Blood clot sample (specimen)
G-810C Blood film sample (specimen)
R-F7C38 Blood in synovial fluid &/or stained (specimen)
R-F8A62 Blood sample for organism (& [culture]) (specimen)
G-8010 Blood specimen (specimen)
G-801B Blood specimen from blood donor (specimen)
G-8019 Blood specimen from blood product (specimen)
G-801A Blood specimen from control (specimen)
G-801D Blood specimen from newborn (specimen)
G-801C Blood specimen from patient (specimen)
G-82F8 Blood specimen obtained for blood culture (specimen)
G-8013 Blood specimen obtained from umbilicus (specimen)
G-82FD Blood specimen submitted in heparinized collection tube (specimen)
G-82BC Blood specimen with anticoagulant (specimen)
G-82E3 Blood specimen with edetic acid (specimen)
G-82B8 Blood spot specimen (specimen)
G-8014 Capillary blood specimen (specimen)
G-81BA Clotted blood sample (specimen)
G-8016 Cord blood specimen (specimen)
G-8017 Cord blood specimen from fetus (specimen)
G-8002 Dried blood specimen (specimen)
R-F51A8 Epidural blood patch (specimen)
G-8146 Erythrocyte specimen from blood donor (specimen)
G-8147 Erythrocyte specimen from blood product (specimen)
G-8137 Menstrual blood specimen (specimen)
G-81B8 Mixed venous blood sample (specimen)
G-8018 Mixed venous blood specimen (specimen)
G-8011 Peripheral blood specimen (specimen)
G-8020 Red blood cell fluid sample (specimen)
G-8181 Serum specimen from blood donor (specimen)
G-8183 Serum specimen from blood product (specimen)
G-8022 Specimen from blood product (specimen)
G-8015 Venous blood specimen (specimen)
G-81C3 White blood cell sample (specimen)
G-81B9 Whole blood sample (specimen)

[Harry Solomon]

While G-810C "Blood film sample" is probably the most appropriate
code, the actual code that should be used will depend on the value set
implemented by the local lab information system. In the anticipated
workflow, the LIS categorizes specimens by type for management
purposes, and lab operations (including imaging) use those
categories. Some LIS's may use high-level categories, and some may
use finer-grained categories; there are implementation trade-offs
(precision vs. complexity) that different products will make
differently.

CID 8103 is a "starter set" of baseline values at a relatively high
level. G-810C is not included, but its SNOMED parent concept G-803C
"Smear sample" does appear. As an extensible Context Group, an
implementation is free to add additional codes to its list.

- Harry Solomon